Professor Oks has founded and co-founded new research fields including intra-Stark spectroscopy, masing without inversion, and quantum chaos. He has developed and implemented a large number of advanced spectroscopic methods for diagnosing various laboratory and astrophysical plasmas, and has published over 500 papers and 9 books. He is the Chief Editor of the journal International Review of Atomic and Molecular Physics and the Editor-in-Chief of the Physical Sciences section of the journal Foundations.